JA4LXY — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM64

Receiver-side FT8 activity involving JA4LXY, decoded by SO8OO in southeastern Poland. 689 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-18.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 689 FT8 messages attributed to JA4LXY as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 80 m (14%) and 160 m (4%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (75%); the estimated median was -1 dB.

Overview

689
Messages attributed
43
UTC dates decoded
92
Active 15-min windows
-1 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-18 21:17 UTC

Observed FT8 message patterns

Attributed sample
689 messages
Active dates
43 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-14.5 to +11 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 55, moderate (-15 to -9 dB) 114, strong (≥ -8 dB) 520.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to JA4LXY

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
PM64 · 249 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,453 km (approx.)
Last such locator decoded
2026-10-18 21:17 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTCBandJA4LXY S/NCounterpartCounterpart S/NMsgsCapture
10-18 21:17 80m -16 / - 7P8GE - / - 2 Partial capture
10-18 21:02 160m - / - OK1AWC -10 / - 5 Partial capture
10-18 20:51 160m - / - OK1AWC -9 / - 4 Partial capture
10-18 20:49 160m - / -16 SQ3DQ +13 / - 2 ✓ Closing fragment
10-16 20:39 160m - / - IZ6BRN +1 / - 3 Partial capture
10-16 20:36 160m - / -21 IZ8FWN -17 / - 8 ✓ Closing fragment
10-15 21:09 80m - / -12 OH8WW -3 / - 2 ✓ Closing fragment
10-15 21:04 80m - / -16 EA3FCQ -4 / - 2 Partial capture
10-15 20:57 80m - / -20 DK9PH 0 / - 2 Partial capture
10-14 19:52 160m - / -20 S59A +4 / - 3 ✓ Closing fragment
10-14 19:43 80m - / -17 LY5LT -11 / - 2 Partial capture
10-14 19:39 80m - / - OK2AB -9 / - 4 Partial capture
10-14 19:38 80m -16 / -16 OM5FM +14 / - 5 ✓ Closing observed
10-14 19:37 80m -15 / -9 PE5TS +4 / - 3 ✓ Closing observed
10-14 19:33 80m -11 / - HA1BF - / - 2 Partial capture
10-14 19:32 80m -12 / - ON4IQ +7 / -15 4 ✓ Closing observed
10-13 19:56 80m -8 / -11 OT7K +12 / - 3 ✓ Closing observed
10-13 19:54 80m - / -9 ES2AJ +12 / - 2 ✓ Closing fragment
10-12 21:24 80m - / -18 YU0U +13 / - 2 ✓ Closing fragment
10-12 20:18 80m - / -18 UA3QQG -15 / - 3 Partial capture
10-12 20:15 80m -6 / -11 SQ9BC +12 / -14 3 Partial capture
10-12 20:10 80m -8 / -15 LY1DY +1 / -8 6 ✓ Full exchange observed
10-12 20:10 80m - / - SP5ILO -4 / - 2 Partial capture
10-12 20:09 80m - / -12 R5BS -1 / - 3 ✓ Closing fragment
10-12 20:06 80m -8 / -17 OH6QU +6 / -14 5 ✓ Full exchange observed
10-12 20:05 80m -6 / -12 SP4MSY -3 / -19 5 Partial capture
10-12 20:04 80m -5 / - EA3EDU -13 / - 3 ✓ Closing observed
10-12 20:01 80m -6 / -9 SP1D +21 / -6 6 ✓ Full exchange observed
10-11 21:28 80m -16 / -17 SP7CMW -11 / -20 3 Partial capture
10-11 21:27 80m - / -16 R3HH +2 / - 3 ✓ Closing fragment
10-11 21:23 80m -10 / -19 YO2UKG +4 / -11 5 ✓ Full exchange observed
10-11 21:21 80m -12 / - HB9BLQ +10 / -16 4 ✓ Closing observed
10-06 20:26 160m - / -17 OM3TWM +7 / - 2 Partial capture
10-05 19:30 160m - / -9 LZ2IP +12 / - 2 ✓ Closing fragment
10-04 20:52 160m - / - DM2SP -14 / - 4 Partial capture
10-04 20:51 160m -17 / -20 G1XOW -14 / -20 5 ✓ Full exchange observed
10-02 20:42 160m - / -20 SM5FUG -6 / - 2 ✓ Closing fragment
10-02 20:03 160m -24 / -19 OM4AIM +11 / -22 4 Partial capture
10-02 19:42 160m -21 / -17 DO1BTW +12 / - 3 ✓ Closing observed
10-02 19:39 160m - / -11 SQ5MJX +12 / - 5 ✓ Closing fragment
10-02 19:39 160m - / -19 OK2BUZ +23 / - 3 ✓ Closing fragment
10-02 19:32 160m - / - IZ7NLJ +3 / - 3 Partial capture
10-02 19:31 160m -22 / +8 DO1BTW +17 / - 4 Partial capture
10-02 19:25 160m - / 0 DO1BTW +18 / - 2 Partial capture
10-01 20:29 160m - / -21 OH5KNL -11 / - 4 ✓ Closing fragment
10-01 19:38 80m - / -8 OM3PC +14 / - 2 ✓ Closing fragment
10-01 19:36 80m -22 / - TF4M -24 / - 2 ✓ Closing observed
09-23 20:28 80m - / -13 CN8WK -2 / - 2 ✓ Closing fragment
09-22 20:56 160m - / -18 IW4AOT -2 / - 2 ✓ Closing fragment
09-22 20:55 160m - / -18 OK2LC -3 / - 7 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m
UTC    dB Audio  Message
193945 -18 1172  OM5FM JA4LXY PM64
194000 -13 1885  JA4LXY OK2AB JN89 (x2)
194130 +15 1123  JA4LXY OM5FM -16 (x2)
194300 -15  327  JA4LXY LY5LT -17 (x2)
205715  -2 1897  JA4LXY DK9PH -20 (x2)
210415  -5 2693  JA4LXY EA3FCQ -16 (x2)
210915  -2 1092  JA4LXY OH8WW -12 (x2)
211715 -16  939  7P8GE JA4LXY PM64 (x2)
160m
UTC    dB Audio  Message
203930 -13 1949  JA4LXY IZ8FWN R-21 (x2)
204000  -2 2777  JA4LXY IZ6BRN JN63 (x2)
204930 +11 1139  JA4LXY SQ3DQ -16 (x2)
205100  -8 1899  JA4LXY OK1AWC JO70 (x9)
40m
UTC    dB Audio  Message
185730  -2  508  JA4LXY R2ZDD KO80
185730 +15 2540  JA4LXY ON6AA JO11
185730  +5 2671  JA4LXY M1EAG IO92
185800 +13 2540  JA4LXY ON6AA JO11
185800  +3 2671  JA4LXY M1EAG IO92
185830  +6  508  JA4LXY R2ZDD KO80 (x2)
185900  -1 2670  JA4LXY M1EAG IO92
185900  -8 2509  JA4LXY EA5AKC IM98
185930 +10  508  JA4LXY R2ZDD 73
185930  -7 2670  JA4LXY M1EAG IO92
185930  -9 2508  JA4LXY EA5AKC IM98
190000  -6 2671  JA4LXY M1EAG IO92
190000 -13 2509  JA4LXY EA5AKC IM98 (x2)
10m
UTC    dB Audio  Message
083645 +10 2534  JA4LXY IK1MNJ JN35
084630  -3 2009  JA4LXY SV1CQN -09 (x2)
084800  +8 2534  JA4LXY IK1MNJ JN35 (x6)
092115  -7 1989  JA4LXY IZ4TNN JN54
092115  -8  625  JA4LXY 9A2RD JN65 (x2)
092215 -10 1987  JA4LXY IZ4TNN JN54 (x3)
20m
UTC    dB Audio  Message
190915 -12  605  OJ0YL JA4LXY R-12 (x7)
190630  -2 2376  JA4LXY D2IM RR73
220615  +0 1753  JA4LXY LX1MAX -09 (x2)
221000 -12 2472  A71YY JA4LXY PM64 (x5)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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